Evidence of ferrimagnetism in ferromagnetic La0.67Ca0.33MnO3 nanoparticle

被引：52

作者：

Bhowmik, R. N. ^{[1
]}

机构：

[1] Pondicherry Univ, Dept Phys, Pondicherry 605014, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2011年 / 323卷 / 3-4期

关键词：

Ferromagnetic nanoparticle; Mechanical Milling; Ferrimagnetism; Core-shell spin structure; EXCHANGE BIAS; MAGNETORESISTANCE;

D O I：

10.1016/j.jmmm.2010.09.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present paper shows that bulk La0.067Ca0.33MnO3 (LCMN) sample of micron size particles is a typical ferromagnet and magnetic properties of LCMN samples with particle size in the nanometer scale are better described in the frame work of a ferrimagnetic structure. Detailed analysis of the temperature dependence of the inverse of paramagnetic susceptibility has confirmed the signature of ferrimagnetism in the nano-sized particles in the core-shell spin structure of LCMN particles, irrespective of the nanocrystalline and amorphous phase of the material. (C) Elsevier B.V. All rights reserved.

引用

页码：311 / 315

页数：5

共 30 条

[1] CONSIDERATIONS ON DOUBLE EXCHANGE [J].

ANDERSON, PW ;

HASEGAWA, H .

PHYSICAL REVIEW, 1955, 100 (02) :675-681

[2] Uniform spin wave modes in antiferromagnetic nanoparticles with uncompensated moments [J].

Bahl, C. R. H. ;

Garde, J. ;

Lefmann, K. ;

Jensen, T. B. S. ;

Lindgard, P. -A. ;

Madsen, D. E. ;

Morup, S. .

EUROPEAN PHYSICAL JOURNAL B, 2008, 62 (01) :53-57

[3] Magnetism of crystalline and amorphous La0.67Ca0.33MnO3 nanoparticles [J].

Bhowmik, R. N. ;

Poddar, Asok ;

Ranganathan, R. ;

Mazumdar, Chandan .

JOURNAL OF APPLIED PHYSICS, 2009, 105 (11)

[4] Lattice expansion and noncollinear to collinear ferrimagnetic order in a MnCr2O4 nanoparticle [J].

Bhowmik, RN ;

Ranganathan, R ;

Nagarajan, R .

PHYSICAL REVIEW B, 2006, 73 (14)

[5] Magnetic enhancement in antiferromagnetic nanoparticle of CoRh2O4 -: art. no. 054430 [J].

Bhowmik, RN ;

Nagarajan, R ;

Ranganathan, R .

PHYSICAL REVIEW B, 2004, 69 (05)

[6] Role of strain-induced anisotropy on magnetic enhancement in mechanically alloyed Co0.2Zn0.8Fe2O4 nanoparticle -: art. no. 094405 [J].

Bhowmik, RN ;

Ranganathan, R ;

Nagarajan, R ;

Ghosh, B ;

Kumar, S .

PHYSICAL REVIEW B, 2005, 72 (09)

[7] Superexchange induced canted ferromagnetism in dilute magnets [J].

Bouzerar, G. ;

Bouzerar, R. ;

Cepas, O. .

PHYSICAL REVIEW B, 2007, 76 (14)

[8] Enhanced magnetoelectric effect in core-shell particulate composites [J].

Corral-Flores, V. ;

Bueno-Baques, D. ;

Carrillo-Flores, D. ;

Matutes-Aquino, J. A. .

JOURNAL OF APPLIED PHYSICS, 2006, 99 (08)

[9] PARAMAGNETIC CURIE-TEMPERATURE IS AN ARITHMETIC AVERAGE OF THE INTERSPIN COUPLING-CONSTANTS [J].

CZACHOR, A .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 139 (03) :355-358

[10] Self-Assembled Ferrimagnet Polymer-Composites for Magnetic Recording Media [J].

Dai, Qiu ;

Berman, David ;

Virwani, Kumar ;

Frommer, Jane ;

Jubert, Pierre-Olivier ;

Lam, Michelle ;

Topuria, Teya ;

Imaino, Wayne ;

Nelson, Alshakim .

NANO LETTERS, 2010, 10 (08) :3216-3221

← 1 2 3 →